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- Circle Software Company
- P.O. Box 7954
- Department G
- Clearwater, FL 34618-7954
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- This software spooler is designed to provide maximum
- utility at minimum cost. Your contribution will help me
- continue to provide quality products for MS-DOS computers.
- The following rate schedule lists several options available
- to you.
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- 1. Registration $10.00
- Includes product registration, notice of updates,
- and list of other quality software products.
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- 2. Spooler Program $15.00
- Includes the above plus a disk with the spooler
- program and documentation file.
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- 3. Source Code $25.00
- Includes all the above plus well-documented
- assembly language source code, theory of
- operation, and suggestions on how to modify or
- customize the program.
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- Spooler Program Description
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- This is a RAM-based spooler program that will free your
- computer for other tasks while your printer is working.
- Program output that ordinarily goes to the printer is sent
- instead to a RAM buffer in a fraction of the time required
- for the printer to complete its task. The data is then
- doled out to the printer in the "background" while you are
- free to do other things on your computer. You can set the
- buffer size to any value up to 64 kbytes. The program
- requires one kilobyte of RAM plus the buffer size you
- choose. The spooler works with any parallel printer
- connected to any port, but will not work with serial
- printers.
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- Two controls are provided to increase the program's
- utility. These may be executed at any time, even when your
- computer is running some other program. Both are executed
- by pressing the Control Key and one other key. Control-P
- will clear the buffer if you decide you don't want to print
- the contents after all. Control-D will resend the contents
- to the printer to make another copy.
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- Command line options are available to change the buffer
- size and the control keys described above. Default values
- are 64 kbytes buffer size and Control-P and Control-D as
- described above.
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- Loading The Program
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- The spooler is a memory resident program. Once it is
- loaded you can forget it for as long as your computer is
- powered. It is probably best that you put the spooler
- command in your Autoexec.bat file. The program should
- coexist safely with other memory resident programs. It
- doesn't care if it is loaded first or last. Try different
- orders if you have a problem.
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- The command syntax is as follows:
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- SPOOL BBBB DDDD PPPP
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- BBBB is a hex number representing the size of the buffer.
- For example:
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- FFFF = 64 kbytes default
- 7FFF = 32 kbytes
- 3FFF = 16 kbytes
- 1FFF = 8 kbytes
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- You can also use in-between values. To get a 40 kbyte
- buffer enter 9C40.
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- DDDD and PPPP are the codes for the key combinations
- you wish to use to duplicate the output and clear the
- buffer, respectively. Use values from the following table:
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- Alt-A 1E1E Alt-J 2424 Alt-S 1F1F
- Alt-B 3030 Alt-K 2525 Alt-T 1414
- Alt-C 2E2E Alt-L 2626 Alt-U 1616
- Alt-D 2020 Alt-M 3232 Alt-V 2F2F
- Alt-E 1212 Alt-N 3131 Alt-W 1111
- Alt-F 2121 Alt-O 1818 Alt-X 2D2D
- Alt-G 2222 Alt-P 1919 Alt-Y 1515
- Alt-H 2323 Alt-Q 1010 Alt-Z 2C2C
- Alt-I 1717 Alt-R 1313
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- CTRL-A 1E01 CTRL-J 240A Ctrl-S 1F13
- CTRL-B 3002 CTRL-K 250B Ctrl-T 1414
- CTRL-C 2E03 CTRL-L 260C Ctrl-U 1615
- CTRL-D 2004 * CTRL-M 320D Ctrl-V 2F16
- CTRL-E 1205 CTRL-N 310E Ctrl-W 1117
- CTRL-F 2106 CTRL-O 180F Ctrl-X 2D18
- CTRL-G 2207 CTRL-P 1910 * Ctrl-Y 1519
- CTRL-H 2308 CTRL-Q 1011 Ctrl-Z 2C1A
- CTRL-I 1709 CTRL-R 1312
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- To accept the default values (*), simply enter SPOOL.
- If you only want to change the buffer size, it is not
- necessary to enter the control key codes. However, if you
- want to change the control key codes, you must also enter
- the buffer size.
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- Using The Spooler
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- The operation of the spooler is completely automatic
- except for clearing the buffer and printing duplicate copy.
- The spooler will accept program output, even if the printer
- is off-line, until the buffer is full. Make sure the
- printer is turned on though. Sometimes the output port
- can't distinguish between a ready signal and a dead line.
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- When the buffer fills up, your program will have to
- wait. The spooler will accept new input at the same rate
- that the printer empties the buffer.
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- You can clear the buffer any time you need to. Of
- course, if your printer has a built-in buffer, you will have
- to clear it too. If you want to print another copy of what
- ever is in the buffer, wait until the first copy is
- completely printed, then press Control-D. If you have
- printed several different jobs, clear the buffer before
- printing the one you wish to print duplicate copies of.
- Also, the duplicate function only works if the document
- smaller than the buffer.
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- If for some reason you want to restart a printing job
- (paper jam), take the printer off-line. Clear the problem,
- press Control-D, then put the printer on-line.
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